Bearing for disk furrow-openers.



C. W. DICKINSON. BEARING Foa DISK FuRRow oPENERs.

APPLICATION FILED )UNE 9. I9l5- 4Patexlted Feb.27, 1917.

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BEARING FOR DISK FURROW-OPENERS.

Original application le. February 19, 1909, Serial No.

Specification of Letters Patent.

Patented Feb. 27, 1917.

478,957. Divided and this application ilefl J une 9,

1915. Serial No. 33,005.

To all whom t may concern:

Be it known that 1, CLINTON 1V. DIcnIN- soN, a resident of La' Crosse, in the county of La Crosse and State of Wisconsin, have invented certain, new and useful Improvements in Bearings for Disk Furrow-Openers, of which the following is a full, clear, and exact description.

The invention relates furrow-openers. 1

The subject-matter of this application is a division' of-the linvention set forth in an application filed by me February 19, 1909, Serial No. 478,957 for disk furrow openers.

In seeding-machines, .it is now common practice to employ furrow-openers consist# ing essentially offa pair of oppositely disposed disks mounted in angular relation t0 one another for opening a furrow, these being generally known as double disk furrow-openers. In this class of devices, each disk is independently journaled in the support, and a desideratum is to provide a. bearing structure which is as narrow as possible to leave the greatest possible clearance between the furrow-openers which are usually employed in gangs in a seeding-machine.

The invention also designs to provide an improved manner whereby the disk-spindle or trunnion may be inserted into the bearing in the support. In accordance withthis object of the invention, the spindle is in'- sertible into the bearing from that side at which the disk is disposed and Vheld in the bearing by means fixed to the support on the same side thereof, the disk being connected to the spindle after the latter has been inserted in the bearing. Resultantly, the disks-,may be conveniently removed for sharpeningwithout removing the-bearingspindles rotating therewith, and means for securing the spindle in its bearing may be formed to serve as' a closure for confining the lubricant in the bearing and `need not be removed ywhen the disk is removed.

The invention is designed to provide an improved simple construction of bearing for the spindle of a disk-furrow opener.

The invention consists in the several novel features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

1n the drawings: Figure 1 is a side elevation of a furrow-opener embodying the invention. Fig. 2 is a horizontalv section to bearings for disk through the axes of the disk spindles, the diskesplndles or bearing-blocks being shown in elevation.' Fig. 3

disks. Fig. 4 is a perspective of one of the disk-spindles or bearing-blocks;4 Fig. 5 is a perspective of the cup-shaped dust-guard. Fig. 6 is `a perspective of one ofthe plates for holdingthe disk-spindles or bearingblocks in its bearing.V

The furrow-opener isusually connected to the frame .of a seeding-machine by a dragb'ar 11 to which is secured a support or boot l2 in which is formed a seed-conduit 13 through which the. seed isy conducted into the furrow formed bythe opener. A disk 14 is disposed at each side of the boot and .these disks are Vjournaled atan angle to each Vother relatively to open a` furrow, the disks being mounted so their lower -portions will be in contact or close proximity, thence diverging towardrthe rear to widen the furrow as they are drawn through the soil.

Each disk 4isrevolubly yconnected to the boot or support 12, the latter being formed with an annulariwall 15 which serves as a bearing for the disk-spindle. A spindle or bearing-block 16 is provided for each disk and is journaled in the bearing 15 of the support, the spindles being journaled at an angle to one another, corresponding to the angular relationof the, disks and are oppositely mounted in said bearing, and the periphery 17l of each spindle 16 fits into the .recess or openingi'n the lbearing 15 and the inner face 19 of Veach spindle is conoidial to form a thrust-surface having a rolling contact` with the. otherl spindle, whereby the lateral thrust of one'spindle will be received and opposedbyftheother. yEach spindle is formed with a reduced portion 20 which eX- tends through a plate 22 having an opening 23 Atherein which fits around said reduced portion and against outward movement in its bearing, by engaging the shoulders17 at the inner end of the reduced portion 20 of the spindle. Each plate 22 is secured to one of the sides of the support by screws 24. The outer end of each spindle is provided withk a reduced terminal 25 which is square in form, or other suitable shape, to extend through a correspondingly shaped opening in the disk, so that the disk and spindle will rotate together.. A washer 26 engages the outer face y is a central, vertical, A longitudinal section of the boot between the v vents the entry or' dirt between the of each disk and is secured to clamp the disk on the spindle by a screw 27. A vcupshaped dirt-guard 28, usually formed of sheet metal, is clamped between the disk and the shoulder 29 of the spindle, and comprises an inturned liange 80 which extends around the periphery of plate 22 and predisk and the plate 22 land to the bearing for the spindle.

ln practice, the soil presses against the lower portions of the outer faces of the disks so that inward thrust or pressure will be exerted on the disk-spindles, so that the latter will receive lateral thrust from each other at the contacting line or point below the spindle axes. It also occurs in practice that the seeding-machine is at times driven back- Y wardly so that the lowerY portions of the disks will be pressed outwardly and to keep these spindles properly positioned in the bearing and prevent them from becoming cramped therein, a wall or abutment 30 is formed on the support and lits between the supported portions of the revolving spindles. Under these abnormal conditions the abutment receives lateral thrust at a point opposite the contacting dles. Thus the spindles will Ybe at all times truly held in the bearings in such manner that excessive friction will be avoided.

An oil-duct 3l isforme'd in the support and communicates at its lower end with the opening or chamber in which the spindles rotate, so that lubrication may be supplied to the inclosed spindles, and the walls of the bearing in which they are journaled. By employing` a plate 22 which is secured to the support and through which the reduced spindle portion 20 extends, the side-opening in the bearing is reduced to form a well in wlhich the lubricant will be retained by the p ate,

In assembling the device, the spindles are first placed into the bearing 15 from the opposite sides thereof and the plates 22 are then respectively secured to the outer sides of the bearing. The spindles will then be held in the bearing against lateral movement in either direction. The cup-shaped guards 28 and disks 14 will then be placed on the reduced terminal 25 of the spindles respectively and securely clamped between washers 26 and shoulders by screws 27. lhen it is desiredrto remove one of the disks for sharpening, or to replace one, it is only necessary to remove the screw 27 when the disk will be free to be withdrawn laterally from the reduced terminal of a spindle. rlhus, each disk may be removed without disturbing the spindles Vor bearingblocks.

As a result of mounting the spindles rotatably in the bearing and securing' them against outward movement by means at the outer sides of the'bearing, and connecting point of the spin-.

ment without removing' the spindles. The

improved cup-shaped dirt-guard effectively y,

prevents the entry of dirt to the bearing and prevents it from being clogged. The closure plate extending around a reduced portion ol the spindle prevents the escape ot' lubricant from the bearing. The construction throughout is one which makes it possible to employ narrow elements while alfording the necessary bearing-surfaces to keep the disks in rotating and proper relation.

The invention is not to be understood as restrictedto the details set forth, since these may be modied within the scope of the appended claims, without departing from the spirit and scope of the invention.

Having thus described theV invention, what l claim as new and desire to secure by Letters Patent, is:

l. A journal bearing including, in combi nation, a supporting bracket having a orwardly and downwardly disposed surface surrounding an axially arranged recess formed in said surface, a bearing block ha,ving` a circular base member rotatably received by said recess, and a circular reduced portion projecting laterally and axially from said base member, a bearing plate secured to the side of said bracket and engaging with the outer face of said base member in a manner to retain said bearing block in rotative relation with said bracket, said plate having a central opening that receives the reduced portion of said bearing block, said reduced portion terminating in a short angular portion, a rotatable element provided with an axial angular opening adapted to receive the angular portion of said bearing-block, and means for securing said rotatable element to said bearing block.

2. A journal bearing including in combination a support, and bracket having a forwardly and downwardly disposed surface surrounding an axially arranged recess formed in said surface, a bearing-block having a circular base-member rotatably received by said recess and a circular reduced portion projecting laterally and axially from said base-member, a bearing-plate se cured to the side of said bracket and engaging with the outer face of said base-member in a manner to retain said bearing block in rotative relation with said bracket, said plate having a central opening' that receives the reduced portion of said bearing block, said reduced portion terminating in a short angular portion, a rotatable element secured on said angular portion of the bearing' block, means for securing said rotatable element to said bearing-block, and a washer mounted upon the reduced portion of the bearingblock in a manner to rotate therewith and disposed between said plate and the rotatable element.

3. A journal bearing including in combination a support and bracket having a forwardly and downwardly disposed surface surrounding' an axially arranged recess toi-ined in said surface, a bearing-block having a circular basemeinber rotatably received by said recess and a circular reduced portion projecting' laterally and axially from` said base-member, a bearing-plate secured to the side ot said bracket and engaging' with the outer face of said base-member in a manner to retain said bearing-block in Copies of this patent may be obtained for rotative relation With said bracket, said plate havinga central opening that receives the reduced'portion of said bearing-block, said reduced portion terminating in a short angular portion, a rotatable element secured on said angular portion of the bearingblock, means for securing said rotatable element to'said bearing-block and a dust cap held on the block and disposed between said plate and t-he rotatable element and having an inturned flange around said plate.

CLINTON WV. DICKINSON. Vitnessos z R. L. Dickinson, P. A. PEDERSON,

ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

